Home / 314,727.90-472,149.45-127,758.30

Finding the Fourth Proportional to 314,727.90, 472,149.45 and 127,758.30

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Solution

The fourth proportional to 314,727.90, 472,149.45 and 127,758.30 is: 191,660.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,727.90 : 472,149.45 = 127,758.30 : x
  2. Step 2: Convert to fraction form
    314,727.90/472,149.45 = 127,758.30/x
  3. Step 3: Cross multiply
    314,727.90x = 472,149.45 × 127,758.30
  4. Step 4: Simplify right side
    314,727.90x = 60,321,011,077.94
  5. Step 5: Solve for x
    x = 60,321,011,077.94/314,727.90
  6. Step 6: Final answer
    x = 191,660.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.